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ARM: dts: imx6qdl-rex: add gpio expander pca9535

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The pca9535 gpio expander is present on the Rex baseboard, but missing
from the dtsi.
The pca9535 is on i2c2 bus which is common to the three SOM
variants (Basic/Pro/Ultra), thus it is activated by default.

Add also the new gpio controller and the associated interrupt line
MX6QDL_PAD_NANDF_CS3__GPIO6_IO16.

Signed-off-by: Gilles DOFFE <gilles.doffe@savoirfairelinux.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Gilles DOFFE 2019-10-16 11:22:55 +02:00 committed by Shawn Guo
parent b780317d8d
commit 568a0a9664
1 changed files with 19 additions and 0 deletions
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19
arch/arm/boot/dts/imx6qdl-rex.dtsi
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@ -132,6 +132,19 @@
pinctrl-0 = <&pinctrl_i2c2>;
status = "okay";
pca9535: gpio-expander@27 {
compatible = "nxp,pca9535";
reg = <0x27>;
gpio-controller;
#gpio-cells = <2>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pca9535>;
interrupt-parent = <&gpio6>;
interrupts = <16 IRQ_TYPE_LEVEL_LOW>;
interrupt-controller;
#interrupt-cells = <2>;
};
eeprom@57 {
compatible = "atmel,24c02";
reg = <0x57>;
@ -237,6 +250,12 @@
>;
};
pinctrl_pca9535: pca9535grp {
fsl,pins = <
MX6QDL_PAD_NANDF_CS3__GPIO6_IO16 0x17059
>;
};
pinctrl_uart1: uart1grp {
fsl,pins = <
MX6QDL_PAD_CSI0_DAT10__UART1_TX_DATA 0x1b0b1